606776789 has 2 divisors, whose sum is σ = 606776790. Its totient is φ = 606776788.

The previous prime is 606776771. The next prime is 606776809. The reversal of 606776789 is 987677606.

606776789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 409374289 + 197402500 = 20233^2 + 14050^2 .

It is a cyclic number.

It is not a de Polignac number, because 606776789 - 2²⁰ = 605728213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (606776719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303388394 + 303388395.

It is an arithmetic number, because the mean of its divisors is an integer number (303388395).

Almost surely, 2^606776789 is an apocalyptic number.

It is an amenable number.

606776789 is a deficient number, since it is larger than the sum of its proper divisors (1).

606776789 is an equidigital number, since it uses as much as digits as its factorization.

606776789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5334336, while the sum is 56.

The square root of 606776789 is about 24632.8396454814. The cubic root of 606776789 is about 846.5962097700.

The spelling of 606776789 in words is "six hundred six million, seven hundred seventy-six thousand, seven hundred eighty-nine".